#378BA6#378BA6

#378BA6 is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 59.7% C 0.089 H 222.7°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#378BA6
RGB	rgb(55, 139, 166)
HSL	hsl(195, 50%, 43%)
HSV	hsv(195, 67%, 65%)
CMYK	cmyk(66.9%, 16.3%, 0%, 34.9%)
CIE-LAB	lab(54.06, -16.51, -21.72)
CIE-LCH	lch(54.06, 27.28, 232.76°)
OKLab	oklab(59.72% -0.0657 -0.0606)
OKLCH	oklch(59.72% 0.089 222.7)
XYZ	xyz(17.6883, 22.0287, 39.3888)
Luminance	0.2203 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#378BA6 #A65237

analogous

#37A689 #378BA6 #3753A6

triadic

#378BA6 #A6378B #8BA637

tetradic

#378BA6 #8937A6 #A65237 #53A637

square

#378BA6 #8937A6 #A65237 #53A637

split-complementary

#378BA6 #A63753 #A68937

monochromatic

#193E4A #286578 #378BA6 #54AAC6 #82C1D6

Accessibility & contrast

On white

3.88

#378BA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#378BA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #378BA6

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##378BA6	#FFFFFF	#000000	##000000
##378BA6	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B88A7

Deuteranopia (green-blind)

#6C7CA6

Tritanopia (blue-blind)

#009394

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #378ba6;
/* rgb */ color: rgb(55, 139, 166);
/* oklch */ color: oklch(59.7% 0.089 222.7);

Tailwind

colors: {
  custom: {
    50: '#7badc0',
    500: '#378ba6',
    950: '#000000',
  },
}

SCSS

$custom: #378ba6;
$custom-light: #7badc0;
$custom-dark: #000000;

JSON

{
  "hex": "#378ba6",
  "rgb": {
    "r": 55,
    "g": 139,
    "b": 166
  },
  "hsl": {
    "h": 194.595,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.59723,
    "c": 0.0894,
    "h": 222.7
  },
  "luminance": 0.22031
}

Semantic roles & 50–950 ramp

primary

#378BA6

secondary

#BF8B7A

accent

#704EDA

background

#F8FAFB

surface

#EFF4F7

border

#CACED0

text

#0A1012

muted

#7C7F81

Preview Lab

Preview with #378BA6

Body copy rendered with the generated semantic roles for this colour.

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